[INFO] fetching crate rsfs 0.4.1...
[INFO] testing rsfs-0.4.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate rsfs 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rsfs 0.4.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsfs 0.4.1
[INFO] finished tweaking crates.io crate rsfs 0.4.1
[INFO] tweaked toml for crates.io crate rsfs 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f94fc22aadcd7b46e18b84eca5d40add743e6a3e47aec731a93581f2cfa3d8ab
[INFO] running `Command { std: "docker" "start" "-a" "f94fc22aadcd7b46e18b84eca5d40add743e6a3e47aec731a93581f2cfa3d8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f94fc22aadcd7b46e18b84eca5d40add743e6a3e47aec731a93581f2cfa3d8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94fc22aadcd7b46e18b84eca5d40add743e6a3e47aec731a93581f2cfa3d8ab", kill_on_drop: false }`
[INFO] [stdout] f94fc22aadcd7b46e18b84eca5d40add743e6a3e47aec731a93581f2cfa3d8ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d8f3210d08a5c1feab1065b70f2b756aa982527922cc2e10e7b7225d9c7d719
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d8f3210d08a5c1feab1065b70f2b756aa982527922cc2e10e7b7225d9c7d719", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsfs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "4d8f3210d08a5c1feab1065b70f2b756aa982527922cc2e10e7b7225d9c7d719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8f3210d08a5c1feab1065b70f2b756aa982527922cc2e10e7b7225d9c7d719", kill_on_drop: false }`
[INFO] [stdout] 4d8f3210d08a5c1feab1065b70f2b756aa982527922cc2e10e7b7225d9c7d719
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] faec8ffc779953589f33a69219313906ec3a31e9c611ea72eced56a45a6b43fc
[INFO] running `Command { std: "docker" "start" "-a" "faec8ffc779953589f33a69219313906ec3a31e9c611ea72eced56a45a6b43fc", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsfs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "faec8ffc779953589f33a69219313906ec3a31e9c611ea72eced56a45a6b43fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faec8ffc779953589f33a69219313906ec3a31e9c611ea72eced56a45a6b43fc", kill_on_drop: false }`
[INFO] [stdout] faec8ffc779953589f33a69219313906ec3a31e9c611ea72eced56a45a6b43fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 903e919aded5f524942142730123c9800658b478b92b7f5885c1556dbeab9141
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "903e919aded5f524942142730123c9800658b478b92b7f5885c1556dbeab9141", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1933:14
[INFO] [stderr]      |
[INFO] [stderr] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stderr]      |              ----^^
[INFO] [stderr]      |              |
[INFO] [stderr]      |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1958:21
[INFO] [stderr]      |
[INFO] [stderr] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stderr]      |                     ----^^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `rsfs` (lib) generated 4 warnings
[INFO] [stderr] warning: `rsfs` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rsfs-32cde737ac496bdd)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test mem::fs::test::create_dir ... ok
[INFO] [stdout] test mem::fs::test::equal ... ok
[INFO] [stdout] test mem::fs::test::create_dir_all ... ok
[INFO] [stdout] test mem::fs::test::remove ... ok
[INFO] [stdout] test mem::fs::test::read_dir ... ok
[INFO] [stdout] test mem::fs::test::open ... ok
[INFO] [stdout] test mem::fs::test::hard_link ... ok
[INFO] [stdout] test mem::fs::test::raw_file ... ok
[INFO] [stdout] test mem::fs::test::remove_dir_all ... ok
[INFO] [stdout] test mem::fs::test::usage ... ok
[INFO] [stdout] test mem::fs::test::rename ... ok
[INFO] [stdout] test mem::fs::test::thread ... ok
[INFO] [stdout] test mem::unix::test::create_dir ... ok
[INFO] [stdout] test mem::unix::test::hard_link ... ok
[INFO] [stdout] test mem::unix::test::remove_dir_all ... ok
[INFO] [stdout] test mem::unix::test::remove ... ok
[INFO] [stdout] test mem::unix::test::rename ... ok
[INFO] [stdout] test mem::unix::test::usage ... ok
[INFO] [stdout] test mem::unix::test::create_dir_all ... ok
[INFO] [stdout] test mem::unix::test::symlink ... ok
[INFO] [stdout] test mem::unix::test::read_dir ... ok
[INFO] [stdout] test mem::unix::test::thread ... ok
[INFO] [stdout] test mem::unix::test::raw_file ... ok
[INFO] [stdout] test mem::unix::test::open ... ok
[INFO] [stdout] test mem::unix::test::equal ... ok
[INFO] [stderr]    Doc-tests rsfs
[INFO] [stdout] test mem::fs::test::symlink ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name rsfs --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-1947d9f0cbf57835.rlib --extern rsfs=/opt/rustwide/target/debug/deps/librsfs-4251458eb1e1058c.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "903e919aded5f524942142730123c9800658b478b92b7f5885c1556dbeab9141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "903e919aded5f524942142730123c9800658b478b92b7f5885c1556dbeab9141", kill_on_drop: false }`
[INFO] [stdout] 903e919aded5f524942142730123c9800658b478b92b7f5885c1556dbeab9141
